System Sensor 1251B Plug-in Intelligent Ionization Sensor M500MJ FMM-1(A) is a standard-sized module

FMM-1(A) is a standard-sized module (typically mounts to a 4″ [10

Conventional 4-wire smoke detectors monitored through their alarm and trouble contacts

The TC806B1084 Photoelectric Smoke Sensor has an optical sensing chamber as well as uses the light-scattering principle

It provides a two-wire initiating circuit for normally open contact fire alarm and security devices

The High-Speed Network Communications Module (HS-NCM) provides NOTIFIER’s NFS-320

System Sensor 1251B Plug-in Intelligent Ionization Sensor M500MJ FMM-1(A) is a standard-sized moduleThe System Sensor 1251B is a plug in Intelligent Ionization Smoke Detector head. 200 Series smoke detectors are intelligent (addressable) detectors with point ID capability that enable each detector address to be set with decade address switches to provide exact detector locations. The 1251B ionization detector incorporates a unique single source, dual chamber design to respond quickly and dependably to a broad range of fires.